@article{EJDE_1997__1997__a44,
     author = {Carlson,  Robert},
     title = {Hill's equation for a homogeneous tree},
     journal = {Electronic journal of differential equations},
     year = {1997},
     volume = {1997},
     zbl = {0890.34066},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_1997__1997__a44/}
}